How to give the backupper client rights to the linux folder?

Question

ubuntu

I installed the server on ubuntu where the nextcloud backup client is urbackup , in the backup server settings I specify the path to the files that need to be backed up /var/www/html/nextcloud/data but this folder has the rights drwxrwx--- , the client cannot access it and backup is not running,

I read the manuals for changing rights and groups, but I didn’t quite catch up with the logic, if I change the group, will nextcloud itself work correctly? Or if I change the rights to more "soft" ones, will this harm security?

Answer 1

Good afternoon!
And urbackup you on behalf of what user is started?
All files in /var/www/ usually have the www-data user/group.
As an option, include the user on behalf of which urbackup is launched into the www-data group, or change the user on whose behalf urbackup is launched to www-data.